Abstract
Linear-core-array microstructured fibers are fabricated using the modified
chemical-vapor deposition (MCVD) for preparing each core performs, and two D-shape
large-scale silica rods are also used in the linear-core-array fiber perform stacking.
The supermodes in optical fibers with linearly distributed 23 cores are presented by
using coupled-mode theory. The coupling coefficients between two adjacent cores are
estimated based on the weak guidance approximation. The near- and far-field
distributions of supermodes supported by the multicore fiber (MCF) are presented. A
Talbot cavity is exploited to select wanted supermodes. The calculated results show that
the in-phase supermode can dominate the output. The coupling field propagation
characteristics of the optical fibers are also analyzed.
© 2009 IEEE
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